Method for estimating and calculating strength of power transmission pole tower material on basis of rough-fuzzy set
A technology of transmission towers and calculation methods, applied in the directions of calculation, electrical digital data processing, instruments, etc., can solve the problems of complex calculation, multi-peak value, small weight, etc.
Inactive Publication Date: 2015-01-14
STATE GRID CORP OF CHINA +2
View PDF2 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] There are also some shortcomings in fuzzy comprehensive evaluation applied to the strength evaluation of tower materials: First, there are many factors that affect the strength of tower materials, while the traditional fuzzy comprehensive evaluation needs to calculate all evaluation indicators, so the calculation is more complicated, and may be due to various factors Severe distortion or multi-peak phenomenon caused by small weights; secondly, for the determination of index weights, due to the different evaluation criteria of various experts, the final results will also be different, so it is highly subjective
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0152] For the tension-resistant iron tower of a power company, the detailed meteorological data of the past five years and the detailed operation data of the iron tower put into operation were retrieved. After re-inversion and simulation by this system, the system safety evaluation is in a dangerous state of failure. In addition, for some other serious defect situations, taking the actual tower material breakage as an example, the system part ( Figure 2-3 shown.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Login to view more
Abstract
The invention discloses a method for estimating and calculating the strength of a power transmission pole tower material on the basis of a rough-fuzzy set. The method comprises the following steps of performing reduction on an index set by using a rough set theory; determining evaluation index weight by a method that subjective weight and objective weight are combined; according to an established evaluation order set, comprehensively evaluating and calculating the actual strength of the tower material by using a fuzzy mathematical method. The typical uncertain problem that the factorial validity affecting the strength of the tower material is not clear in an evolutionary process can be solved. The method can provide an important scientific criterion to the safety evaluation of an iron tower structure.
Description
technical field [0001] The invention relates to the field of structural strength evaluation and calculation of transmission poles and towers, and is particularly suitable for the structural safety evaluation of transmission poles and towers operating for a long time in complex natural environments. Background technique [0002] The essence of line structure safety is an evolution process of an uncertain state space, and the state evolution (transition) process is random, in which the characteristic information representing the actual mechanical strength of tower materials is inaccurate, and the validity of the influencing factors is also It is not clear, the definition and extension of the operating state are vague, and the expert knowledge for state evaluation is incomplete, so the evaluation and calculation of the strength of the line tower material is a complex problem of uncertainty. [0003] Fuzzy comprehensive evaluation is based on fuzzy mathematics. Its basic idea is...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 傅靖陈国华朱富云徐剑峰葛乐龚灯才朱张蓓鞠易孙玉玮
Owner STATE GRID CORP OF CHINA
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap